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Academia Mexicana de Neurología, A.C.

2015, Number 6

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Rev Mex Neuroci 2015; 16 (6)

Inactive neurocysticercosis in a CT scan sample: New evidence on a decreasing public health issue?

Navarro-Arenas GA, Palomera-Tejeda E, Batres-Padilla MA, Parra-Romero GJ, Figueroa-Sánchez GM, Alvarado-Aguilar JE, Ruiz-Sandoval JL

Language: Spanish
References: 9
Page: 3-8
PDF size: 210.15 Kb.


ABSTRACT

Objective: To determine the frequency of calcified (Neurocysticercosis) NCC in patients treated in a referral hospital in the west of Mexico.
Methods: We analyzed a series of computed tomography (CT) scans of the brain from patients, regardless of any diagnosis, age or gender, searching for suggestive evidence of calcified NCC. Results: A sample of 1218 consecutive brain CT scans was obtained in a six-month period. The prevalence of suggestive NCC calcifications was 6.8% (83 patients). The mean age of cases was 57 years (SD 18.3), 54 cases (65%) were found on patients over 50 years. Subject age was strongly associated with NCC calcifications (p ‹0.001, χ2 for linear trend). There was a significant increase in the prevalence of cases from the sixth decade of life compared with the general sample (OR=2.29: 95% CI 1.32-4.00, p 0.003). The same tendency was observed in the seventh (OR=2.08: 95% CI 1.11- 3.90, p 0.02), eighth (OR=2.14: 95% CI 1.11-4.10, p 0.019) and ninth (OR=3.93: 95% CI 1.81-8.51, p ‹0.001) decades respectively. Conclusion: The frequency of inactive NCC falls within expected ranges for our population, however, the age distribution pattern suggests a lower incidence of NCC in Mexico.


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